JPH041040Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial field of application: This invention allows a small waterjet-propelled boat to be loaded and then towed by another boat or self-propelled by the propulsion of the loaded small boat. This relates to a non-powered carrier.

Background of the idea: Boats are used for a variety of purposes, using pumps to pressurize water sucked in from the bottom of the ship, and a water jet ejected from the stern for propulsion. Among these, small boats with this kind of propulsion power have been praised for their lightness as they do not have propellers or fins on the bottom, and have become popular as water sports equipment for one or two people or as liaison boats. Ta. However, small boats that use a water jet for propulsion (hereinafter referred to as small jet boats) are prohibited from normal sailing as sports or leisure at beaches or swimming areas. Therefore, small jet boats are sent offshore far from the beach and sailed in waters where there is no danger to swimmers.

Prior art: When transporting a small jet boat to a navigation area, because the jet small boat itself does not have sufficient wave resistance when its power is stopped, it is necessary to load essential items such as personnel and fuel onto a boat that transports personnel and fuel to the destination area. It is being done. However, the dead weight of a small jet boat is over 100 kg even for a one-person boat, and can reach 150 kg for a two-person boat. Therefore, for ships without davits or winches, lifting the jet skiff onto the ship's deck or lowering it to the water surface has become a difficult manual task.

Problems that the invention aims to solve: When loading jet boats on a deck and transporting them to the target navigation area, a ship with sufficient carrying capacity to carry the jet boats in addition to the necessary personnel is required. A boat must be used. Furthermore, as mentioned above, the manual lowering or lifting of jet boats,
The work was likely to be dangerous, and it was also difficult to maintain the stability of the ship, so some sort of solution was needed in terms of safety.

Means for solving the problem: The present invention was made to solve the above problem, and it is possible to transport small jet boats safely without having to load them onto a main ship, which has various disadvantages. This opens up the possibility of doing this by towing. in particular,
It can be easily combined with or separated from a jet small boat, which would be extremely difficult to tow by itself, and compensates for the lack of buoyancy and sea-bearing ability of a jet small boat when its power is stopped, making it safer than the main ship, regardless of its size. The purpose is to provide a carrier that can be towed.

Function of the invention: The carrier of the invention has sufficient buoyancy, has an open stern, and has a slipway. As a result, by placing the center of gravity on the stern, the rear waterline rises, allowing the jet small boat to be easily pulled in and seated through the open stern section. If the carrier and jet small boat are connected using a tightening device, the carrier's buoyancy and wave-breaking ability allow it to be safely towed by another watercraft, such as a motor boat, at speeds up to about 30 knots. Furthermore, by providing a cutout at the stern end of the slipway,
Utilizing the power of the small jet boat on which the passenger is seated, the carrier and the small jet boat can be combined to propel themselves.

Embodiment: Next, one embodiment of the present invention will be described based on the drawings. As illustrated in FIGS. 1 to 5, the carrier 1 of the present invention has an open stern, and a slipway 2 is provided between each freeboard on both sides from the open stern toward the bow. At the stern end of the slipway 2 on the centerline, a cutout 4 of an appropriate size is provided by cutting out the bottom of the ship, and furthermore, support bodies 3 in the form of protrusions are provided on both sides of the cutout 4 along the longitudinal direction of the hull. . Coupling devices 5, 5 are attached to required locations on both sides of the freeboard, mooring devices 6 are provided on the bow deck, and towing devices 7 are provided near the bow waterline. Although the material of the carrier 1 of the present invention is not limited, it can be easily manufactured from FRP, and the embodiments shown in FIGS. 1 to 5 are cases where FRT is used.

As shown in FIG. 6, the carrier 1 constructed in this manner allows a small jet boat 10 to be seated on the slipway 2 portion of the carrier 1 via the supports 3, 3. In other words, when connecting and forwarding a jet small boat using the carrier 1 on the water surface, if the person doing this work first moves to the stern of the carrier 1, the center of gravity of the carrier 1 moves to the stern, and the stern opening The rear end of Slipway 2, which is connected to , goes below the water surface. In this state, the jet small boat enters the slipway 2 from the stern opening and enters the slipway 2.
The person begins to sit on the supports 3, 3 arranged parallel to the plane. Here, when the worker moves to the bow side of the carrier 1 and pulls the jet boat, the jet boat 10 moves smoothly on the supports 3, 3 and reaches the back of the slipway 2, easily. You can sit on it. Next, the jet small boat 10 can be reliably connected to the carrier 1 by tightening the coupling device 5 on the freeboard using a belt or the like. Incidentally, although not shown in the drawings, by providing a fastening fitting at the innermost part of the slipway 2 and tightening it with the bow of the jet small boat 10, the connection to the carrier 1 can be strengthened.

Effects of the invention: The carrier of the invention has high buoyancy and excellent wave-survival properties, and can easily seat and connect a small jet boat.The carrier of the invention can be easily attached to a jet boat by connecting the towing line to the towing device 7 and moving it to the target area by a motor boat or the like. It can be safely towed up to In the destination water area, the jet small boat can be easily removed and separated by reversing the coupling procedure. If the carrier after separating the jet small boat is moored to the main vessel such as a motor boat via the mooring device 6, it can be used as a platform for the person operating the jet small boat, and when it is not moored, it can be used for rowing. It can also be used as a boat.

Furthermore, in the carrier of the present invention, the cutout at the rear end of the slipway is provided so as to correspond to the water intake position of the jet small boat. It can be used for a wide variety of purposes, such as being able to self-propel using water jet power, and has great industrial applicability.

[Brief explanation of the drawing]

Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a - perspective view of Fig. 1, and Fig. 4 is a plan view of one embodiment of the present invention.
The figure is a - view of Fig. 1, and Fig. 5 is a - view of Fig. 1.
FIG. 6 is a perspective view showing a state in which the jet small boat is seated and coupled. 1...Carrier, 2...Slipway, 3...
...Support, 4... Cutout, 5... Connector, 6...
Mooring equipment, 7... Towing equipment, 10... Jet small boat.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. The stern of the hull made of an appropriate material is open, and the freeboard space on both sides from the open stern toward the bow is formed into a slipway, and the stern on the center line of this slipway 1. A carrier for a small jet boat characterized by a structure in which a cut-out portion of an appropriate size is provided by cutting out the bottom of the boat, and supports of protrusions are provided along the longitudinal direction of the hull on both sides of the cut-out portion. 2. The carrier for a small jet boat according to claim 1, which is provided with a coupling device for tightening the small jet boat seated on the slipway at key points on the freeboard of the hull.